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https://doi.org/10.21256/zhaw-21918| Publication type: | Article in scientific journal |
| Type of review: | Peer review (publication) |
| Title: | Multi-resonator metamaterials as multi-band metastructures |
| Authors: | Gorshkov, Vyacheslav Sareh, Pooya Navadeh, Navid Tereshchuk, Vladimir Soleiman Fallah, Arash |
| et. al: | No |
| DOI: | 10.1016/j.matdes.2021.109522 10.21256/zhaw-21918 |
| Published in: | Materials & Design |
| Volume(Issue): | 202 |
| Issue: | 109522 |
| Issue Date: | 27-Jan-2021 |
| Publisher / Ed. Institution: | Elsevier |
| ISSN: | 0264-1275 1873-4197 |
| Language: | English |
| Subjects: | Multi-resonator; Phononic metamaterial; Acoustic mode; Optic mode; Bandgap; Dispersion surface |
| Subject (DDC): | 530: Physics |
| Abstract: | Introducing multi-resonator microstructure into phononic metamaterials provides more flexibility in bandgap manipulation. In this work, 3D-acoustic metamaterials of the body- and face-centered cubic lattice systems encompassing nodal isotropic multivibrators are investigated. Our main results are: (1) the number of bandgaps equals the number, n, of internal masses as each bandgap is a result of the classical analog of the quantum level-repulsion mechanism between internal and external oscillations, and (2) the upper boundary frequencies, ωupper2i, i = 1, 2, ⋯, n, of the gaps formed coincide with eigen-frequencies, ωint;i2 ≠ 0, of the isolated multivibrator, ωupper2;i = ωint; i2, and the lower boundary frequencies, ωlower2,i2, are in good agreement with estimations as (), where represent the eigen-frequencies of the multivibrator when its external shell is motionless. The morphologies of the set of dispersion surfaces, ωm2(k), m = 1, 2, …, 6, in the corresponding passbands are similar to each other and to that of the set of dispersion surfaces, ωext; m2(k), obtained through the exclusion of internal masses. Thus, the problem of analyzing the acoustic properties of the complicated system is reduced to the study of two simple sets {ωint; i2} and , along with {ωext; m2(k)}, the morphology of which depends only on the type of lattice symmetry. This splitting renders controlled phononic bandgaps formation in homogeneous multi-resonator metamaterials feasible. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/21918 |
| Fulltext version: | Published version |
| License (according to publishing contract): | CC BY 4.0: Attribution 4.0 International |
| Departement: | School of Engineering |
| Organisational Unit: | Institute of Computational Physics (ICP) |
| Appears in collections: | Publikationen School of Engineering |
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| 2021_Gorshkov-etal_Multi-resonator-metamaterials-metastructures.pdf | 4.65 MB | Adobe PDF |  View/Open |
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Gorshkov, V., Sareh, P., Navadeh, N., Tereshchuk, V., & Soleiman Fallah, A. (2021). Multi-resonator metamaterials as multi-band metastructures. Materials & Design, 202(109522). https://doi.org/10.1016/j.matdes.2021.109522
Gorshkov, V. et al. (2021) ‘Multi-resonator metamaterials as multi-band metastructures’, Materials & Design, 202(109522). Available at: https://doi.org/10.1016/j.matdes.2021.109522.
V. Gorshkov, P. Sareh, N. Navadeh, V. Tereshchuk, and A. Soleiman Fallah, “Multi-resonator metamaterials as multi-band metastructures,” Materials & Design, vol. 202, no. 109522, Jan. 2021, doi: 10.1016/j.matdes.2021.109522.
GORSHKOV, Vyacheslav, Pooya SAREH, Navid NAVADEH, Vladimir TERESHCHUK und Arash SOLEIMAN FALLAH, 2021. Multi-resonator metamaterials as multi-band metastructures. Materials & Design. 27 Januar 2021. Bd. 202, Nr. 109522. DOI 10.1016/j.matdes.2021.109522
Gorshkov, Vyacheslav, Pooya Sareh, Navid Navadeh, Vladimir Tereshchuk, and Arash Soleiman Fallah. 2021. “Multi-Resonator Metamaterials as Multi-Band Metastructures.” Materials & Design 202 (109522). https://doi.org/10.1016/j.matdes.2021.109522.
Gorshkov, Vyacheslav, et al. “Multi-Resonator Metamaterials as Multi-Band Metastructures.” Materials & Design, vol. 202, no. 109522, Jan. 2021, https://doi.org/10.1016/j.matdes.2021.109522.
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